author
b. 1869
A Dutch historian of the late 19th and early 20th centuries, he is best known for writing about Dutch activity in the Philippine waters before 1626. His work points to a strong interest in maritime and colonial history.

by Dirk Abraham Sloos
Dirk Abraham Sloos was a Dutch author and historian born in 1869. University of Amsterdam records identify him as D.A. Sloos and indicate that he lived from 1869 to 1958.
He is known for De Nederlanders in de Philippijnsche wateren vóór 1626, published in Amsterdam in 1898. Library and catalog records describe the book as a historical study of Dutch activity in Philippine waters, showing his focus on overseas history and maritime subjects.
Little biographical information appears to be widely available online beyond his academic and bibliographic records. Even so, the surviving catalog entries suggest a scholar whose published work contributed to the documentation of Dutch expansion and trade in Southeast Asia.